Table 2.

Global descriptors of gas molecules–protein interactions derived from the MD trajectories for bacterial H-NOX systems.

System	NO	O2	CO
Average Number of Gas Molecules in the Protein
Cs	9.4	9.5	7.0
Ka	16.4	9.8	7.6
Ns	17.6	11.4	8.2
Average Number of Protein Contacts Summed over All Gas Molecules in the Protein Matrix
Cs	70.2	103.0	44.0
Ka	104.0	95.6	45.0
Ns	117.2	99.1	47.9
Average Number of Protein Contact/Gas Molecule
Cs	7.5	10.8	6.3
Ka	6.3	9.7	6.0
Ns	6.7	8.7	5.8